# SDR ASAA2021100136243

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2021
- Submitted: October 12, 2021
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 56,562 hours, 16,444 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Part number: 143A812621
- Condition: Corroded
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021100136243

## Discrepancy

FWD PIT RH TRANSITION PANEL HAS CORROSION ON UPPER SURFACE AT STA 427, RBL 24 (MARKED). DOT:P466. GROUNDED - YES. REMOVED CORROSION FROM R/H SHIELD AT STA 427 PER B737-800 SRM 53-30-15-1A-1. ORIG THICKNESS .032. REMOVED .019 REMAINING .013. FOUND TO BE OUT OF LIMITS PER B737-800 SRM 53-30-15-1A-1. REMOVED AND REPLACED SHIELD PER B737-800 SRM 51-40-05, SRM 51-40-02, AND BOEING DWG 143A0080 REV.- REMOVED DOT.

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